Package net.sf.saxon.functions
Class Matches
java.lang.Object
net.sf.saxon.functions.AbstractFunction
net.sf.saxon.functions.SystemFunction
net.sf.saxon.functions.RegexFunction
net.sf.saxon.functions.Matches
- All Implemented Interfaces:
Callable
,StatefulSystemFunction
,Function
,GroundedValue
,Item
,Sequence
This class implements the 3-argument matches() function for regular expression matching
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionprotected boolean
call
(XPathContext context, Sequence[] arguments) Evaluate the expressionboolean
evalMatches
(AtomicValue input, AtomicValue regex, CharSequence flags, XPathContext context) Interface used by compiled bytecodeGet the (local) name of a class that can be used to generate bytecode for this system functionMethods inherited from class net.sf.saxon.functions.RegexFunction
copy, getRegularExpression, getStaticRegex, makeFunctionCall, makeOptimizedFunctionCall
Methods inherited from class net.sf.saxon.functions.SystemFunction
dependsOnContextItem, dynamicCall, equals, export, exportAdditionalArguments, exportAttributes, fixArguments, getArity, getCardinality, getContextNode, getDescription, getDetails, getErrorCodeForTypeErrors, getFunctionItemType, getFunctionName, getIntegerBounds, getNetCost, getOperandRoles, getRequiredType, getResultItemType, getResultItemType, getRetainedStaticContext, getSpecialProperties, getStaticBaseUriString, getStreamerName, importAttributes, isTrustedResultType, makeCall, makeFunction, resultIfEmpty, setArity, setDetails, setRetainedStaticContext, supplyTypeInformation, toShortString, toString, typeCheckCaller
Methods inherited from class net.sf.saxon.functions.AbstractFunction
atomize, deepEquals, effectiveBooleanValue, getAnnotations, getStringValue, getStringValueCS, isArray, isMap, makeNewContext, simplify, typeCheck
Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Methods inherited from interface net.sf.saxon.om.GroundedValue
asIterable, concatenate, containsNode, materialize
Methods inherited from interface net.sf.saxon.om.Item
getLength, head, isStreamed, itemAt, iterate, reduce, subsequence
Methods inherited from interface net.sf.saxon.om.Sequence
makeRepeatable
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Constructor Details
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Matches
public Matches()
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Method Details
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allowRegexMatchingEmptyString
protected boolean allowRegexMatchingEmptyString()- Specified by:
allowRegexMatchingEmptyString
in classRegexFunction
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evalMatches
public boolean evalMatches(AtomicValue input, AtomicValue regex, CharSequence flags, XPathContext context) throws XPathException Interface used by compiled bytecode- Parameters:
input
- the value to be testedregex
- the regular expressionflags
- the flagscontext
- the dynamic context- Returns:
- true if the string matches the regex
- Throws:
XPathException
- if a dynamic error occurs
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call
Evaluate the expression- Parameters:
context
- the dynamic evaluation contextarguments
- the values of the arguments, supplied as Sequences- Returns:
- the result of the evaluation, in the form of a Sequence
- Throws:
XPathException
- if a dynamic error occurs during the evaluation of the expression
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getCompilerName
Description copied from class:SystemFunction
Get the (local) name of a class that can be used to generate bytecode for this system function- Overrides:
getCompilerName
in classSystemFunction
- Returns:
- the name of a bytecode generation class, or null if there is no bytecode support for this function
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